1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A mass of 2.0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure. The mass of the spring and the pan is negligible.

When pressed slightly and released the mass executes a simple harmonic motion. The spring constant is 200 N/m. What should be the minimum amplitude of the motion so that the mass gets detached from the pan (take g = 10 m/s2).

AIPMT 2007 Physics - Oscillations Question 39 English
A
10.0 cm
B
any value less than 12.0 cm
C
4.0 cm
D
8.0 cm
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The phase difference between the instantaneous velocity and acceleration of a particle executing simple harmonic motion is
A
$$\pi $$
B
0.707 $$\pi $$
C
zero
D
0.5 $$\pi $$
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The particle executing simple harmonic motion has a kinetic energy K0cos2$$\omega $$t. The maximum values of the potential energy and the total energy are respectively
A
K0/2 and K0
B
K0 and 2K0
C
K0 and K0
D
0 and 2k0
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
An engine has an efficiency of 1/6. When the temperature of sink is reduced by 62oC, its efficiency is doubled. Temperatures of the source is
A
37oC
B
62oC
C
99oC
D
124oC.